CAD as a mechanical engineer with sufficient skills and capabilities to design and modelling 2d, 3d, sheet metal, molding of casting metal, ... , With more than 5 years experience at the same field, and as a mechanical engineer I'm also able to choose appropriate material that meet the budget, also can do the simulation off different parameters and affects include thermal, mechanical, electrical effects and more, i prefer to use ansys tools to do the simulation because of powerful features program supply.